Sr. Network Engineer
Location: Saint Louis
Posted on: June 23, 2025
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Job Description:
Job Title: Network Engineer Location: Hybrid - St. Louis MO
Duration: Contract 12 months Industry: IT Infrastructure / Cloud /
Enterprise Networks Pay rate - 70K to 120K per Annum VISA - Green
Cards and US Citizens only Job Summary: We are seeking a skilled
and motivated Network Engineer to design, implement, maintain, and
support our growing network infrastructure. You will be responsible
for supporting mission-critical network environments across data
centers, AWS cloud, and enterprise platforms. A strong foundation
in routing, switching, firewalls, and cloud networking is required.
Hands-on experience with automation (Python, CI/CD) is highly
preferred. Key Responsibilities: Configure and maintain routers,
switches, and firewalls (Cisco, Palo Alto, Fortinet, Juniper).
Design and implement site-to-site VPN, remote access VPNs, and
SD-WAN solutions. Perform network migrations and upgrades for
on-prem and cloud environments. Collaborate with DevOps and cloud
teams on AWS networking (VPCs, subnets, route tables, transit
gateway, security groups). Administer load balancers (F5, AWS
ELB/ALB/NLB) for high-availability applications. Manage and monitor
data center networks, including cabling, rack planning, and device
configuration. Automate routine network tasks using Python
scripting and CI/CD pipelines (Git, Jenkins, Ansible). Conduct
performance tuning, diagnostics, and capacity planning for
enterprise networks. Ensure network compliance with security
policies and implement firewall rules as needed. Provide Level 2/3
support for network-related incidents and escalations. ? Required
Skills & Experience: 5 years of hands-on experience in enterprise
network engineering Strong understanding of OSI model, TCP/IP, DNS,
DHCP, NAT Expertise in routing protocols (BGP, OSPF, EIGRP) and
switching technologies (VLANs, STP, EtherChannel) Experience with
network security tools and concepts: firewalls, ACLs, IDS/IPS
Proven track record of data center deployments, patch paneling, and
hardware installations Hands-on with AWS networking: VPC, VPN
Gateway, Direct Connect, Route53, NACLs Familiarity with CI/CD
tools: GitHub/GitLab, Jenkins, Terraform (optional) Proficient in
Python scripting for automating network health checks,
configuration backups, log parsing Experience with load balancers
(F5 LTM/GTM, AWS ALB/NLB) Strong problem-solving skills with
attention to detail and documentation Excellent communication and
collaboration skills Preferred Qualifications: Cisco certifications
(CCNA, CCNP, or CCIE) AWS certifications (AWS Certified Advanced
Networking, Solutions Architect) Familiarity with tools like
NetBox, SolarWinds, Wireshark, Nagios, Zabbix Experience with
infrastructure-as-code (IaC) for networking Tools & Technologies
You’ll Use: Networking: Cisco IOS/NX-OS, Juniper, Arista, Fortinet,
Palo Alto Firewalls & VPN: ASA, FortiGate, Palo Alto, OpenVPN,
IPSec, SSL VPN Cloud: AWS (VPC, TGW, IGW, ELB), Terraform, AWS CLI
Automation: Python, Ansible, Jenkins, GitHub Actions Monitoring:
SolarWinds, NetBox, Nagios, Wireshark, CloudWatch Load Balancing:
F5 Big-IP, AWS ELB/ALB/NLB Scripting/CI/CD: Python, Bash, Git,
Jenkins, GitLab CI/CD
Keywords: , Chesterfield , Sr. Network Engineer, IT / Software / Systems , Saint Louis, Missouri
